Fix null derefenece in Mozilla browsers if we attempt to create a JavaScriptException after encountering a "throw null;" scenario.

Patch by: bobv
Review by: jgw (TBR)


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@4817 8db76d5a-ed1c-0410-87a9-c151d255dfc7
1 file changed